Hot-water heater.



` J. MRAGEK.

HOT WATER HEATER. l APPLICATION FILED MAY 14, 1908.

Patented May 11, 1909 V JOHN MRACEK, OF CHICAGO, ILLINOIS.

Hor-WATER HEATER.

Specification of Letters Patent.

Patented May 1i, 190e.

Application filed May l, 1908. erial No. 432,850.

vTo cll'whom it may concern:

Befit known that l, JOHN MRACEK, a citi- Zen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Im- `provein ents in Hot-Water Heaters, of which the following is a specification.

This invention relates to heating a pliances for rooms, apartments, and the 1ke, Vhaving'reference more particularly to that type wherein the heating effect is secured by the circuiti-tion of hot Water through suitable heat-radiating devices.

The main object of the invention is to rovide an independent and self-contained heating apparatus employing a gaseous fuel, by wl ich l mean an apparatus wherein each .radiator isequipped with its own means for heating and regulating the teniperature of the water circulating therein, independent ol the conditions that may exist in other radiators employed in `the same room or building.

li/iy invention, in one approved mechanical` form in which the same may be embodied, is illustrated in the accompanying drawing, wherein the gure is a side elevation of a portion of an ordinary hot water radiator with water-heating and gas-controlling attachment applied thereto, the latter appearing partly in vertical section.

Referring to the drawing, 1 designates an end portion of an ordinary hot water radiator, the up er and lower limbs of which are connected lor the circulation of water by a pipe herein shown as comprising upper and ower horizontal sections 2 and 3, respectively, and an intermediate vertical section 4 y connected to the horizontal section lby upper and lower elbow couplings 2a and 3, respectively. n the vertical section 4'of this pipe is inter osed a somewhat enlarged section herein s own as a hollow tapered member 4, wide at its bottom and narrowat its top and freely communicating at both ends with the upper and lower sections ol' the pipe 4, as

shown. Surrounding the enlarged section 4EL ofthe pipe 4 is a drum .5 containing an annular water chamber 6 formed, by and between the inner and outer walls of the drum, this latter being connected and communicating freely-with the upper and lower ends of the tapered section 4'nl by a series oi pi es 7 and-8, respectively. Surmounting the c ruin 5 and surrounding the upper section of the pipe 4 is alcone-shaped hood 9, which latter,

as also the ta ered or cone-shaped section 4a, is preferab y and as herein shown, corrugated.'

Directly below the lower or wide end of the tapered pipe section 4, and surrounding the lower section of the pipe 4, is an annular gas burner 10, provided with thc usual series of jet apertures 11 in its upper side. Tapping this burner ring lateral y is a gas-supp y pi e 12 in which is interposed an ordinary va ve-cock 1%,l the stem of which is bent at rightangles and extended alongside the supply-pipe, as shown at 14. A coiled spring 15 connected at one end to the arm 14 of the valve and at its'othcr end to a bracket 16 supported by the supplyipe 12, or to any other convenient point o attachment, normally tends to open the valve 13.

Surmounted on the upper pipe section 2,'

or any other part oll the radiator, is an expension tank 17 herein shown as supported upon a central pipe 1S through which the interior of the tank communicates freely with the pipe section 2 and thc water in thol radiator. ln this tank is secured a diaphragm 19, to which is connected by clamping plates 20 and 21 a valve-actuating rod 22, the lower end of which passes through an aperture in' the valve arm 14, being adjustably connected to the latter by a nut 23 engaging thc threaded lower end ofthe rod. A lilling tube 24 for the radiator con'ununicates with the expansion tank 17 bclowthe diaphragm 19, and an indicator tubc 25 and thermometer 26 serve res ectivel to indicate the hei rht i .l e

.end pi e attachment to which the burner is applic having been 'filled 'with water, the gas is ignited at the burner 10, which rapidly heats thev water in the superposcdpipe sections 4L and 4, as likewise thc water in the annular drum lhis at once institutesI and,

cev

so long as the water remains heated, inaintains a circulation ofwatcr between the upper and lower parts of the radiator through the described pipe connections at the end of the latter'. As the water becomes heated, it rises through the pipe 18 into the expansion tank 17, and as it exceeds in temperature the 30 ber contributes materially to the efficiency ,35 products of combustion. By reason of the .o large area of heatiiny surface, whereby local disposed with reference to said vertical por i predetermined desired point, it raises the diall therein an enlarged conical sectioncoaxially' phragin 19 and, through the latter andthe l disposed with reference to said vertical por- Valve-rod 22, lifts the valve-arm 14 against g tion' ofpthe circulation pipe with its wide end the action of spring 15 and partially or i or base lowerinost, a gas burner dircctlv bel 5 wholly ents off the supply ofgas to the 2 neath the base of said conical section, a drum 70 burner, thus either reducing or extinguishing having an annular water chamber surroundthe heating flame., Byadjusting the nut 23, i ing and substantially (io-extensive longituthe supply of gas to the burner may be redinally with said conical section, and with duced or'cut off when a greater or less teini the latter forming an annular flue for the l0 per'ature hasbeen reached in the water cirheated products of combustion from the 75 culating, through the radiator, since the exl burner, a plurality of radially disposed pipes pansion and contraction of the water are proforming a communication between the up'- portional to its rise and fall of temperature. i per endsof said ,conical section and drum, In the normal operation of the device, the l and a plurality of similar pi )es forming a l5 burner will be automatically maintained, ,e communication between the ower ends of 80 through control of the gas supply therefor, at said conical section and drum, substantially such a heat as sufficies to maintain at a unias described. formpoint the desired temperature in thera- 2. A hearing a apliance for rooms, apartdiator. If, however, through variations in ments and the lilic, comprising, a radiator gas pressure or from any other cause, this I adapted for water circulation and having a 85 temperature is exceeded, the supply 'thereof E circulation pipe connecting the upper and is at once fuither acted .upon -to further rci lower iortions thereof, the vertical portion duce or entirely cut off the gas to the burner. i of sai circulation pipe having interposed In the latter event, the rapid reduction in therein an enlarged conical section coaxially temperature of the water which follows soon disposed with. reference to said vertical por- 90 permitsthe valve to be reopened, wheietion ofthe circulation pipe with its wide end upon the pilot'light at once restablishes the or base lowerinost, a gas burner directly beheatingflaine at the burner. lneath the -base of said conical section, a

The drum 5 with its annular water chaindrum having angannular water chamber sur rounding and substantially co-extensive 9'5 longitudinally with s'afid conical section, and with the latter forming an annular iiuc for the heated roducts of combustion from the burner, a p urality of radially disposed pipes forming a communication between the 11p-'100 fact that the cooling Water enters the coneper' ends of said conical section and drum, a sha ed section of the circulation pipe cenpluralityjof similar )ipes forn'iingacommunif'traly of its .lower wide end, and of the furcation between the ower ends of said conical thcr fact that the latter is freely connected section and drum, and a hood surinounting 40 both at top and bottoni to the up er and said drum and surrounding the Vertical por- 105 lower ends of the annular Water c amber tion of said circulation ipe above said con by thc series of radially disposed pipes 7 and vical section, substantia y as described. 8, a substantial equilibrium of the water in 3. A heating a pliancc for rooms, aparte the conical and annular chambers is inainments and the hire, comprising a radiator 4.5 tained at all times, the contracted, or naradaptedI for water circulation and having a 110 rowed upper end of the conical chamber, in circulation pipe connecting the u per and' association with the free communication bclower portiris thereof, the verticali portion tween the lower ends of the two chambers, of said circulation pipe having interposed also forcing 4the Water into contact with av therein an enlarged conical section coaXially of the burner in heating the jwater by adding a considerable surface arca that is exposed on one side to the water in the s stein and on the other side 'to the heating efiects of the circulation within t e water-heating device tion of the circulation pipe with its wide end itself is avoided. The hood 9 also confines or base lowermost, agas burner directly be- Vand directs the hot ases rising from theV neath the base of said conical section, a drum drum 5 to and upon t e up )er pipe section having' an annular water chamber surround,- 4, thus securing additional heating effect in and substantially co-eXtensive longitudi' 1,20

upon the water in said pipe section and con na ly with said conical section, and with the tributing to ther economical and efficient utililatter forming an annular Hue for the lHeated zation of the heat yielded by the burner. products of combustionfrom the b` ner, a

Lelaim: y plurality of radially disposed pipespormin l. A 'heating a ipliance for rooms, aparta communication between the upper ends o k'i25 ments' and the li ie, comprising a rarhator said conical section and drum, a plurality of adapted for water circulation and having a similar. lpipes forming a communication be'- circulation .pipe -connecting thc upper and tweent ie lower ends of said conical section lower iortions thereof, the-Vertical portion and drum, a hood sui-mountingV said drum (i5-of sai .circulation 4pipe hain'ng interposed and surrounding the-vertical portion of said 130 circulation pipe above said' conical section, as my invention, I have hereunto subscribed c uQIdSuPPIy-.pe for 'saidhburlxsen L valve my name in the presence of two Witnesses. msm 1 e an meansw ere t e osition of @gig ialvei utomaticallyycontrgllcd JOHN MRACEK' 5 by the temperature ofthe water in said ra- Witnessesz dlator, substantially as described. SAMUEL N. POND,

In testimony that I claim the foregoing FREDERICK C. GOODWINI 

